Packaging device

ABSTRACT

A packaging device is provided, comprising a box for accommodating object to be packaged. The packaging device further comprises a limiter located on the both sides of the inner surface of the box. The limiter includes a fixing department and a limiting department. The limiting department is connected to one side of the fixing department and extends in a direction that is far away from the fixing department. The length of the projection of the fixing department, which is projected on a vertical plane perpendicular to the limiting department, is larger than the thickness of the limiting department. The fixing department is clamped fixedly by the box, and the limiting department stretches into the box to clamp the object to be packaged. Implementing the present invention, the limiter can be prevented from sliding out and the damage to the packaged object can be avoided.

FIELD OF THE INVENTION

The present invention relates to the packaging technique, and more particularly to a packaging device for a liquid crystal panel.

BACKGROUND OF THE INVENTION

At present, a box made of foaming material or plastic is used for packaging the Liquid crystal panel for transporting it. The liquid crystal panel is placed flat. The position of the liquid crystal panel is limited by a limiter in the box. As shown in FIG. 1, the liquid crystal panel generally includes an LCD (a liquid crystal cell) 3, a PCB 7 adjacent to the edge at one side of the liquid crystal cell 3, and a plurality of COFs 8 connected between the liquid crystal cell 3 and PCB 7. The packaging device for the liquid crystal panel generally includes a box 1 with inner space. The inner space is consisted of a first cavity 11 configured to accommodate the liquid crystal cell 3 and a second cavity 12 configured to accommodate the PCB 7 and the plurality of COFs. A limiter 2 is mounted on the interface between the first cavity 11 and the second cavity 12. The limiter 2 stretches into a position between the liquid crystal cell 3 and the PCB 7 and resists against the edge at the side of the liquid crystal cell 3 which is facing the PCB 7. The box 1 further includes an accommodating slot 9 configured to accommodate part of the limiter 2. During the transportation, the pressure may be applied upon the limiter 2 by the liquid crystal cell 3, and the box 1 will be squeezed under the pressure as a section of the limiter 2 is engaged in the box 1. Because of the absence of a securing structure between the tabular limiter 2 and the box 1, the limiter 2 will slide out from the box 1 when the box 1 is partially deformed easily resulted from the large pressure provided by the liquid crystal cell 3. In such a case, the limiter 2 cannot hold the liquid crystal panel any more, which will cause the liquid crystal panel to move in the box 1 to be damaged.

SUMMARY OF THE INVENTION

Aiming at the drawbacks in the prior art that the limiter in the liquid crystal panel packaging device would slide out when it is exerted with large pressure, the object of the present invention is to provide a packaging device, especially a liquid crystal panel packaging device for packaging a liquid crystal panel, which can prevent the limiter from sliding out.

A liquid crystal panel packaging device for packaging A liquid crystal panel is provided. The liquid crystal panel comprises a liquid crystal cell, a PCB adjacent to the edge at one side of the liquid crystal cell and a plurality of COFs connected between the liquid crystal cell and the PCB. The packaging device comprises a box with inner space, the inner space consisted of a first cavity configured to accommodate the liquid crystal cell and a second cavity configured to accommodate the PCB and the COFs. The packaging device further comprises a limiter located on the both sides of the inner surface of the box. The limiter includes a fixing department and a limiting department. The limiting department is connected to one side of the fixing department and extends in a direction that is far away from the fixing department. The length of the projection of the fixing department, which is projected on a vertical plane perpendicular to the limiting department, is larger than the thickness of the limiting department. The fixing department is clamped by the box fixedly, and the limiting department extends from the interface between the first cavity and the second cavity to a position between the liquid crystal cell and the PCB to clamp the liquid crystal cell.

In above liquid crystal panel packaging device, an accommodating slot is defined on the inner surface of the box to accommodate at least part of the limiter. The opening of the accommodating slot is located in the interface between the first cavity and the second cavity. The limiter stretches out from the accommodating slot into the position between the liquid crystal cell and the PCB, and it resists against the edge of the side of the liquid crystal cell which is facing the PCB.

In above liquid crystal panel packaging device, the limiting department of the limiter is tabular, and the fixing department of the limiter includes two tabular first fixing plates, the two first fixing plates are connected to two sides at one end of the limiting department respectively and form the same angles not less than 90° with regard to the limiting department.

In above liquid crystal panel packaging device, the accommodating slot includes two first slots and a second slot. The second slot is configured to accommodate at least part of the limiting department and each first slot is configured to accommodate the first fixing plate. The two first slot are connected to two sides at one end of the second slot respectively and form the same angles not less than 90° with regard to the second slot.

In above liquid crystal panel packaging device, the limiting department is tabular, and the fixing department includes a second fixing plate, a third fixing plate and a fourth fixing plate. The second fixing plate, the third fixing plate and the fourth fixing plate are connected successively, and the second fixing plate and the third fixing plate are tabular. One end of the second fixing plate is connected perpendicularly to one end of the limiting department. The other end of the second fixing plate is connected perpendicularly to one end of the third fixing plate. The extending direction of the third fixing plate is parallel to the extending direction of the limiting department. The other end of the third fixing plate is connected perpendicularly to the fourth fixing plate.

In above liquid crystal panel packaging device, the accommodating slot includes a third slot, a fourth slot and a fifth slot, the third slot, fourth slot and the fifth slot are connected successively. The third slot is configured to accommodate the fourth fixing plate. The fourth slot is configured to accommodate the third fixing plate. The fifth slot is flat and L-shaped and is provided with an opening at the side facing the liquid crystal cell, and the fifth slot is configured to accommodate part of the limiting department and the second fixing plate connected perpendicularly to one end of the limiting department. One end of the fourth slot is perpendicularly communicated with the third slot. The other end of the fourth slot is perpendicularly communicated with one end of the fifth slot, and the extending direction of the fourth slot is parallel to the extending direction of the limiting department.

In above liquid crystal panel packaging device, the third slot is a square hole, a V-shaped hole or a T-shaped hole.

In above liquid crystal panel packaging device, the fourth fixing plate is tabular, V-shaped or T-shaped.

In above liquid crystal panel packaging device, the limiter has a contacting surface, the limiting department contacts the liquid crystal cell through the contacting surface, and a cushion is set between the contacting surface and the liquid crystal cell.

A packaging device is also provided, comprising a box configured to accommodate object to be packaged. The packaging device further comprises a limiter located on both sides of the inner surface of the box. The limiter includes a fixing department and a limiting department. The limiting department is connected to one side of the fixing department and extends in a direction that is far away from the fixing department. The length of the projection of the fixing department, which is projected on a vertical plane perpendicular to the limiting department, is larger than the thickness of the limiting department. The fixing department is clamped by the box fixedly, and the limiting department extends to the inner of the box to clamp the object to be packaged.

In above packaging device, an accommodating slot is defined on the inner surface of the box to accommodate part of the limiter.

In above packaging device, the limiting department of the limiter is tabular, and the fixing department of the limiter includes two tabular first fixing plates. The two first fixing plates are connected to two sides at one end of the limiting department respectively and form the same angles not less than 90° with regard to the limiting department.

In above packaging device, the accommodating slot includes two first slots and a second slot. The second slot is configured to accommodate part of the limiting department and each first slot is configured to accommodate the first fixing plate. The two first slot are connected to two sides at one end of the second slot respectively and form the same angles not less than 90° with regard to the second slot.

In above packaging device, the limiting department is tabular, and the fixing department includes a second fixing plate, a third fixing plate and a fourth fixing plate. The second fixing plate, the third fixing plate and the fourth fixing plate are connected successively, and the second fixing plate and the third fixing plate are tabular. One end of the second fixing plate is connected perpendicularly to one end of the limiting department. The other end of the second fixing plate is connected perpendicularly to one end of the third fixing plate. The extending direction of the third fixing plate is parallel to the extending direction of the limiting department. The other end of the third fixing plate is connected perpendicularly to the fourth fixing plate.

In above packaging device, the accommodating slot includes a third slot, a fourth slot and a fifth slot, the third slot, fourth slot and the fifth slot are connected successively. The third slot is configured to accommodate the fourth fixing plate. The fourth slot is configured to accommodate the third fixing plate. The fifth slot is flat and L-shaped and is provided with an opening at the side facing the liquid crystal cell, and the fifth slot is configured to accommodate part of the limiting department and the second fixing plate connected perpendicularly to one end of the limiting department. One end of the fourth slot is perpendicularly communicated with the third slot. The other end of the fourth slot is perpendicularly communicated with one end of the fifth slot, and the extending direction of the fourth slot is parallel to the extending direction of the limiting department.

In above packaging device, the third slot is a square hole, a V-shaped hole or a T-shaped hole.

In above packaging device, the fourth fixing plate is tabular, V-shaped or T-shaped.

When implementing the present invention, the following advantages can be achieved. The structure of the limiter has been changed in the invention to enable it to be clamped by the box, and thus preventing it sliding out from the box. The structure of the limiter has been changed and the box has been changed correspondingly, so the force in various directions will be applied to the limiter to reduce the probability of deformation for the box, and further preventing the limiter sliding out from the box.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention can be further illustrated by reading the example with references made to the accompanying drawings, in which:

FIG. 1 is a structure view of a liquid crystal panel packaging device in the prior art;

FIG. 2 is an explosive view of a liquid crystal panel packaging device according to a preferred embodiment of the present invention;

FIG. 3 is a structure view of a limiter according to a first preferred embodiment of the present invention;

FIG. 4 is a structure view of an accommodating slot on the limiter shown in FIG. 3;

FIG. 5 shows the limiter in FIG. 3 under pressure;

FIG. 6 is a structure view of a limiter according to a second preferred embodiment of the present invention;

FIG. 7 is a structure view of an accommodating slot on the limiter shown in FIG. 6;

FIG. 8 shows the limiter in FIG. 6 under pressure;

FIG. 9 is a structure view of a packaging device according to a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

A liquid crystal panel packaging device in the invention is mainly used for packaging the liquid crystal panel with a large size. The liquid crystal panel comprises a liquid crystal cell 3, a PCB 7 and a plurality of COFs 8. The PCB 7 is adjacent to the edge at one side of the liquid crystal cell 3. All of the COFs 8 are connected between the liquid crystal cell 3 and the PCB 7. Wherein, the plurality of COFs 8 can be spaced from each other.

FIG. 2 shows a liquid crystal panel packaging device according to a preferred embodiment. The Liquid crystal panel packaging device includes a box 4 with inner space. A first cavity 41 configured to accommodate the liquid crystal cell 3 and a second cavity 42 configured to accommodate the PCB 7 and the plurality of COFs are formed and comprised in the inner space of the box 4. The packaging device further comprises a limiter 5 located on the both sides of the inter surface of the box 4. The limiter 5 includes a fixing department 51 and a limiting department 52. The limiting department 52 is connected to one end of the fixing department 51 and extends in a direction that is far away from the fixing department 51. The length of the projection of the fixing department 51, which is projected on a vertical plane perpendicular to the limiting department 52, is larger than the thickness of the limiting department 52. The fixing department 51 is clamped by the box 4. The limiting department 52 stretches out from the interface between the first cavity 41 and the second cavity 24, and into a position between the liquid crystal cell 3 and the PCB 7 to clamp the liquid crystal cell 3.

An accommodating slot 43 is defined on the inner surface of the box 4. The accommodating slot 43 is configured to accommodate part of the limiter 5. The opening of the accommodating slot 42 is located at the interface between the first cavity 41 and the second cavity 42. The limiting department 52 stretches out from the accommodating slot 42, and into the position between the liquid crystal cell 3 and the PCB 7. The limiting department 52 resists against the edge at the side of the liquid crystal cell 3 which is facing the PCB7. In such a case, when the limiter 5 is exerted with pressure, the box 4 would exert a lot of reaction force upon the limiter 5 to prevent the limiter 5 sliding out and prevent the box 4 deforming partially.

The limiter 5 is made of hard material, such as cemented carbide, hard cotton, thermosetting material and the like. However, the hard material is not limited within above examples, it can be selected according to actual requirements. The deforming amount of the limiter 5 under pressure can be reduced when adopting the hard material.

FIG. 3 shows a limiter according to a first embodiment. The limiter 5 includes a limiting department 52 a and a fixing department 51 a. The limiting department 52 a is tabular. In other embodiments, the limiting department 52 a may be a blending plate or a folded plate. The fixing department 51 a includes two tabular first fixing plates 511 a. The two first fixing plates 511 a are connected to two sides at one end of the limiting department 52 a respectively, i.e. the limiting department 52 a extends towards the side that is far away from the fixing department 51 a. The two first fixing plates 511 a form the same angles not less than 90°, preferably more than 90°, with respect to the limiting department 52 a. In such a case, the limiting department 52 a and the two first fixing plates 511 a together construct a Y-shaped structure. The thickness of the limiting department 52 a is less than the distance between the ends of the two first fixing plates 511 a, i.e. the length of the projection of the fixing department 51 a, which is projected on a vertical plane perpendicular to the limiting department 52 a, is larger than the thickness of the limiting department 52 a. In this case, the limiter 5 can be clamped more steadily to prevent the limiter 5 sliding out. Of course, the shape of the first fixing plate 511 a is not limited to be tabular, but can be a plate with arc or a curved plate.

As shown in FIG. 4, the accommodating slot 43 corresponding to the limiter 5 in the first embodiment includes two first slots 431 a and a second slot 432 a. The first slot 431 a and the second slot 432 a are gap-shaped. The second slot 432 a is configured to accommodate part of the limiting department 52 a, and each first slot 431 a is configured to accommodate the first fixing plate 511 a. The two first slots 431 a are connected to two sides of a single end of the second slot 432 a respectively. The two first slots form the same angles not less than 90 degree, preferably more than 90 degree, with respect to the second slot 432 a. In such a case, the second slot 432 a and two first slot 431 a together construct a Y-shaped structure. The inner surface of each slot may be flat or uneven. Each slot may has a structure that is long-strip-shaped, zigzag-shaped, wave-shaped and the like, as long as they can be engaged with the first fixing plate 511 a.

As shown in FIG. 5, after the liquid crystal panel is packaged in the box 4, the wall of the accommodating slot 43 fits the limiter 5 closely. When the liquid crystal cell 3 exerts pressure G upon the limiter, the two first fixing plates 511 a are exerted with a reaction force f2 and f3, and the limiting plate 52 a is exerted with a holding force f1 and the pressure G. According to physics mechanical principle, the pressure G exerted upon the limiter 5 will be partially counteracted by other reaction forces. As a result, the pressure applied to the limiter will be reduced. Thus, the probability for the limiter to be deformed or slid will be reduced, which will in turn reduce the probability for the liquid crystal cell 3 fixed by it to move around and reduce the probability for the COFs 8 to be broken off.

FIG. 6 shows a structure view of a limiter 5 according to the second embodiment. As shown in FIG. 6, the limiter 5 includes a fixing department 51 b and a limiting department 52 b. In the embodiment, the limiting department 52 b is a plate. Of course, in other embodiments, the limiting department 52 b may be a blending plate or a folded plate. The fixing department 51 b includes a second fixing plate 511 b, a third fixing plate 512 b and a fourth fixing plate 513 b. Wherein the second fixing plate 511 b, the third fixing plate 512 b and the fourth fixing plate 513 b are connected successively, and each of them is tabular. In other embodiments, each of the second fixing plate 511 b, the third fixing plate 512 b and the fourth fixing plate 513 b may be a blending plate or a folded plate. One end of the second fixing plate 511 b is connected perpendicularly to one end of the limiting department 52 b. The other end of the second fixing plate 511 b is connected perpendicularly to one end of the third fixing plate 513 b. The extending direction of the third fixing plate 512 b is parallel to the extending direction of limiting department 52 b. The other end of the third fixing plate 512 b is connected perpendicularly to the middle of the fourth fixing plate 513 b. The fourth fixing plate 513 b is parallel to the second fixing plate 511 b. The width of the fourth fixing plate 513 b is larger than the thickness of the limiting department 52 b. The length of the fourth fixing plate 513 b in a direction of the thickness of the limiting department 52 b is larger than the thickness of the limiting department 52 b. That is to say, the length of the projection of the fixing department 51 b, which is projected on a vertical plane perpendicular to the limiting department 52 b, is larger than the thickness of the limiting department 52 b. In this case, the limiter 5 can be clamped more steadily to prevent the limiter 5 sliding out.

As shown in FIG. 7, the accommodating slot 43 b corresponding to the limiter 5 according to the second embodiment includes a third slot 431 b, a fourth slot 432 b and a fifth slot 433 b. Wherein the third slot 431 b, fourth slot 432 b and fifth slot 433 b are connected successively. The third slot 431 b is square-hole-shaped and configured to accommodate the fourth fixing plate 513 b. The fourth slot 432 b is gap-shaped and configured to accommodate the third fixing plate 512 b. The fifth fixing plate 433 b is flat and L-shaped, and it has an opening at the side facing to the liquid crystal cell 3. The fifth fixing plate 433 b is configured to accommodate part of the limiting department 52 b and the second fixing plate 511 b connected perpendicularly to one end of the limiting department 52 b. One end of the fourth slot 432 b is perpendicularly communicated with the middle of the third slot 431 b. The other end of the fourth slot 432 b is perpendicularly communicated with one end of the fifth slot 433 b. The extending direction of the fourth slot 432 b is parallel to the extending direction of the limiting department 52 b.

As shown in FIG. 8, after the Liquid crystal panel is packaged in the box 4, the wall of the accommodating slot 43 will fit the limiter 5 closely. When the liquid crystal cell 3 exerts pressure G upon the limiter, the fixing department 51 b of the limiter 5 is exerted with a reaction force f3 and the limiting plate 52 a is exerted with reaction force f1, f2 and pressure G. According to physics mechanical principle, the pressure G exerted upon the limiter 5 would be partially counteracted by other reaction forces. As a result, the pressure applied to the limiter 5 will be reduced. Thus, the probability for the limiter to be deformed or slid will be reduced, which will in turn reduce the probability for the liquid crystal cell 3 to move around and reduce the probability for the COFs 8 to be broken off.

In other embodiments, the fourth fixing plate 513 b may be designed to tabular, V-shaped or T-shaped, thus enabling the new structure of the limiter 5. Accordingly, the third slot may be designed to square-hole, V-shaped or T-shape to accommodate the fourth fixing plate 513 b. According to physics mechanical principle as mentioned above, when the liquid crystal cell 3 exerts pressure on the limiter 5, the limiter 5 can be exerted with more reaction forces, and thus increasing holding strength of the limiter 5 to prevent it sliding out.

Referring to FIG. 2 to FIG. 8, the limiter 5 further includes a contacting surface (not labeled). The limiter 5 contacts the liquid crystal cell 3 through the contacting surface. In FIG. 3, the contacting surface is located on the plane at the side of the limiting department 52 b which is facing the liquid crystal cell 3. In FIG. 6, the contacting surface is located on the plane at the side of the second fixing plate 511 b and the limiting department 52 b which is facing the liquid crystal cell 3. Preferably, the contacting surface is a flat surface to make the limiter 5 and the liquid crystal cell 3 fit more closely and to increase the contacting area. The contacting surface also may be an uneven surface to achieve the anti-skidding effect. The packaging device further comprises a cushion 6 located between the contacting surface and the liquid crystal cell 3. Preferably, the cushion 6 is stuck to the contacting surface or directly placed on the contacting surface. Advantageously, the shape of the cushion 6 should match with the shape of the contacting surface, and thus achieving a better buffering effect. Of course, in other embodiments, the cushion 6 may be designed to be other shapes. Advantageously, the cushion 6 is made of soft material such as sponge, rubber and the like.

As shown in FIG. 9, a packaging device is also provided in the present invention. The packaging device includes a box 10 configured to accommodate object to be packaged and a limiter 40 located on the both sides of the inter surface of the box 10. The limiter 40 includes a fixing department 20 and a limiting department 30. The limiting department 30 is connected to one end of the fixing department 20 and extends in a direction that is far away from the fixing department 20. The length of the projection of the fixing department 20, which is projected on a vertical plane perpendicular to the limiting department 30, is larger than the thickness of the limiting department 30. The fixing department 20 is clamped fixedly by the box 10. The limiting department 30 stretches into the box 10 to clamp the object to be packaged. The structure of the box 10 and limiter 40 are the same with that of the liquid crystal panel packaging device. However, the packaging device is not only for packaging the liquid crystal panel, but also for packaging other object.

It should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the present invention. However, all the changes will be included within the scope of the appended claims. 

1. A liquid crystal panel packaging device for packaging a liquid crystal panel, the liquid crystal panel comprising a liquid crystal cell, a PCB adjacent to the edge at one side of the liquid crystal cell and a plurality of COFs connected between the liquid crystal cell and the PCB; the packaging device comprising a box with inner space, the inner space consisted of a first cavity configured to accommodate the liquid crystal cell and a second cavity configured to accommodate the PCB and the COFs, wherein, the packaging device further comprises a limiter located on the both sides of the inner surface of the box ; the limiter includes a fixing department and a limiting department; the limiting department is connected to one side of the fixing department and extends in a direction that is far away from the fixing department; the length of the projection of the fixing department, which is projected on a vertical plane perpendicular to the limiting department, is larger than the thickness of the limiting department; the fixing department is clamped by the box fixedly, and the limiting department extends from the interface between the first cavity and the second cavity to a position between the liquid crystal cell and the PCB to clamp the liquid crystal cell.
 2. The Liquid crystal panel packaging device of claim 1, wherein, an accommodating slot is defined on the inner surface of the box to accommodate at least part of the limiter; the opening of the accommodating slot is located in the interface between the first cavity and the second cavity; the limiter stretches out from the accommodating slot into the position between the liquid crystal cell and the PCB, and it resists against the edge of the side of the liquid crystal cell which is facing the PCB.
 3. The Liquid crystal panel packaging device of claim 2, wherein, the limiting department of the limiter is tabular, and the fixing department of the limiter includes two tabular first fixing plates, the two first fixing plates are connected to two sides at one end of the limiting department respectively and form the same angles not less than 90° with regard to the limiting department.
 4. The liquid crystal panel packaging device of claim 3, wherein, the accommodating slot includes two first slots and a second slot; the second slot is configured to accommodate at least part of the limiting department and each first slot is configured to accommodate the first fixing plate; the two first slot are connected to two sides at one end of the second slot respectively and form the same angles not less than 90° with regard to the second slot.
 5. The Liquid crystal panel packaging device of claim 2, wherein, the limiting department is tabular, and the fixing department includes a second fixing plate, a third fixing plate and a fourth fixing plate; the second fixing plate, the third fixing plate and the fourth fixing plate are connected successively, and the second fixing plate and the third fixing plate are tabular; one end of the second fixing plate is connected perpendicularly to one end of the limiting department; the other end of the second fixing plate is connected perpendicularly to one end of the third fixing plate; the extending direction of the third fixing plate is parallel to the extending direction of the limiting department; and the other end of the third fixing plate is connected perpendicularly to the fourth fixing plate.
 6. The Liquid crystal panel packaging device of claim 5, wherein, the accommodating slot includes a third slot, a fourth slot and a fifth slot, the third slot, fourth slot and the fifth slot are connected successively; the third slot is configured to accommodate the fourth fixing plate; the fourth slot is configured to accommodate the third fixing plate; the fifth slot is flat and L-shaped and is provided with an opening at the side facing the liquid crystal cell, and the fifth slot is configured to accommodate part of the limiting department and the second fixing plate connected perpendicularly to one end of the limiting department; one end of the fourth slot is perpendicularly communicated with the third slot; the other end of the fourth slot is perpendicularly communicated with one end of the fifth slot, and the extending direction of the fourth slot is parallel to the extending direction of the limiting department.
 7. The Liquid crystal panel packaging device of claim 6, wherein, the third slot is a square hole, a V-shaped hole or a T-shaped hole.
 8. The Liquid crystal panel packaging device of claim 7, wherein, the fourth fixing plate is tabular, V-shaped or T-shaped.
 9. The Liquid crystal panel packaging device of claim 1, wherein, the limiter has a contacting surface, the limiting department contacts the liquid crystal cell through the contacting surface, and a cushion is set between the contacting surface and the liquid crystal cell.
 10. A packaging device comprising a box configured to accommodate object to be packaged, wherein, the packaging device further comprises a limiter located on both sides of the inner surface of the box; the limiter includes a fixing department and a limiting department; the limiting department is connected to one side of the fixing department and extends in a direction that is far away from the fixing department; the length of the projection of the fixing department, which is projected on a vertical plane perpendicular to the limiting department, is larger than the thickness of the limiting department; the fixing department is clamped by the box fixedly, and the limiting department extends to the inner of the box to clamp the object to be packaged.
 11. The packaging device of claim 10, wherein, an accommodating slot is defined on the inner surface of the box to accommodate part of the limiter.
 12. The packaging device of claim 11, wherein, the limiting department of the limiter is tabular, and the fixing department of the limiter includes two tabular first fixing plates, the two first fixing plates are connected to two sides at one end of the limiting department respectively and form the same angles not less than 90° with regard to the limiting department.
 13. The packaging device of claim 12, wherein, the accommodating slot includes two first slots and a second slot; the second slot is configured to accommodate part of the limiting department and each first slot is configured to accommodate the first fixing plate; the two first slot are connected to two sides at one end of the second slot respectively and form the same angles not less than 90° with regard to the second slot.
 14. The packaging device of claim 11, wherein, the limiting department is tabular, and the fixing department includes a second fixing plate, a third fixing plate and a fourth fixing plate; the second fixing plate, the third fixing plate and the fourth fixing plate are connected successively, and the second fixing plate and the third fixing plate are tabular; one end of the second fixing plate is connected perpendicularly to one end of the limiting department; the other end of the second fixing plate is connected perpendicularly to one end of the third fixing plate; the extending direction of the third fixing plate is parallel to the extending direction of the limiting department; and the other end of the third fixing plate is connected perpendicularly to the fourth fixing plate.
 15. The packaging device of claim 14, wherein, the accommodating slot includes a third slot, a fourth slot and a fifth slot, the third slot, fourth slot and the fifth slot are connected successively; the third slot is configured to accommodate the fourth fixing plate; the fourth slot is configured to accommodate the third fixing plate; the fifth slot is flat and L-shaped and is provided with an opening at the side facing the liquid crystal cell, and the fifth slot is configured to accommodate part of the limiting department and the second fixing plate connected perpendicularly to one end of the limiting department; one end of the fourth slot is perpendicularly communicated with the third slot; the other end of the fourth slot is perpendicularly communicated with one end of the fifth slot, and the extending direction of the fourth slot is parallel to the extending direction of the limiting department.
 16. The packaging device of claim 15, wherein, the third slot is a square hole, a V-shaped hole or a T-shaped hole.
 17. The packaging device of claim 16, wherein, the fourth fixing plate is tabular, V-shaped or T-shaped. 